3 months ago a mid 80yo relative noticed her washing machine would not fill up with cold water. The screen on the cold side was blocked with a dark gray material that looks like very fine steel wool but soft per touch. I pulled the kitchen faucet screen and it was blocked. Since then I’ve had to clean the washing machine line several times and the sink twice. The washer is the closest line to the tank. After the material dries a hot flashlight will make the material smolder. One variable was the house was struck by lightning a couple of weeks before we noticed the blockage. It destroyed her 22kv generator and knocked out the phones. No obvious damage to the lines at the well. 4 inch submersible pump last replaced 30 years ago. The company that installed the well changed the pressure regulator and said they couldn’t find any problems. Any thoughts?
the pressure reg
the pressure reg